1 Samuel 21:3-5

3Now what do you have on hand? Give me five loaves of bread or whatever can be found.”

4The priest told him, “There is no ordinary bread on hand. However, there is consecrated bread, but the young men may eat it only if they have kept themselves from women.”

5David answered him, “I swear that women are being kept from us, as always when I go out to battle. The young men’s bodies are consecrated even on an ordinary mission, so of course their bodies are consecrated today.”